Kolkhorst, Lois W., Texas State Senator District 18 Share: Kolkhorst, Lois W., Texas State Senator District 18 Room GE.4, PO Box 12068 Austin, TX 78711 (512) 463-0118 Rep Info Map Whom to Contact Ms. Lois Kolkhorst Phone: (512) 463-0118 Send an Email Mr. Chris Steinbach Phone: (512) 463-0118 Send an Email Ms. Cheryl Tiemann Phone: (512) 463-0118 Send an Email What's Nearby? Distance: 5 10 15 20 25 50 mi.